Bug#980992: cairo: drop unused Build-Depends

[Helmut Grohne]

Source: cairo
Version: 1.16.0-5
Tags: patch
User: helmutg at debian.org
Usertags: rebootstrap

cairo participates in a number of dependency loops relevant to
architecture bootstrap. Instead of looking into such a difficult
problem, I looked into easily droppable Build-Depends. It turns out that
the dependencies on libsm-dev, xutils-dev and libxt-dev can be dropped
without changing output artifacts (in a reproducibility sense). A
cursory look as to where these would be used yielded nothing. Please
consider dropping them. I'm attaching a patch for your convenience.

Helmut
-------------- next part --------------
diff --minimal -Nru cairo-1.16.0/debian/changelog cairo-1.16.0/debian/changelog
--- cairo-1.16.0/debian/changelog	2020-12-31 22:39:40.000000000 +0100
+++ cairo-1.16.0/debian/changelog	2021-01-25 06:42:14.000000000 +0100
@@ -1,3 +1,10 @@
+cairo (1.16.0-5.1) UNRELEASED; urgency=medium
+
+  * Non-maintainer upload.
+  * Drop unused Build-Depends: libxsm-dev, xutils-dev, libxt-dev. (Closes: #-1)
+
+ -- Helmut Grohne <helmut at subdivi.de>  Mon, 25 Jan 2021 06:42:14 +0100
+
 cairo (1.16.0-5) unstable; urgency=medium
 
   * Team upload
diff --minimal -Nru cairo-1.16.0/debian/control cairo-1.16.0/debian/control
--- cairo-1.16.0/debian/control	2020-12-31 22:39:40.000000000 +0100
+++ cairo-1.16.0/debian/control	2021-01-25 06:42:13.000000000 +0100
@@ -17,9 +17,6 @@
                libx11-dev (>= 2:1.3.3-2),
                libxext-dev,
                libpng-dev,
-               libsm-dev,
-               xutils-dev,
-               libxt-dev,
                libpixman-1-dev (>= 0.30.0),
                libxcb1-dev (>= 1.6),
                libxcb-render0-dev (>= 1.6),